Azbil PTG71, Руководство пользователя

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Azbil Corporation Installation
Model PTG71 / 72 - Smart Pressure Transmitter 2-1
Chapter 2 : Installation
Introduction
This section describes various installation methods for different types of process
interface.
2-1 : Air inlet
A Model PTG is a gauge pressure transmitter.The built-in semiconductor pressure
sensor measures atmospheric pressure as the reference pressure.
Install this device in such a way that water will not enter the air inlet and powder or
viscous materials will not be deposited on it.
If this device will be installed upside down at the bottom of the tank (with the process
connection port facing upward), or if powder or viscous material may adhere to or
accumulate on the device’s exterior, insert the chloroprene rubber fitting (included
with the product) into the air inlet.
If this device will be exposed to heavy splashing or if a great amount of powder or
viscous material will adhere to or accumulate around it, it is also possible to insert a 3
mm diameter tube into this inlet to introduce air at a different position.
Air inlet
Fitting for air inlet
(chloroprene rubber, included with the product)
When the air inlet fitting is attached
Figure 2-1 Air inlet and rubber fitting
For models with an internal air inlet (optional), the inlet is located in the cable wiring
space so as not to be exposed to the outside.